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Finding the Fourth Proportional to 18,381.78, 27,576.81 and 6,695.04

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Solution

The fourth proportional to 18,381.78, 27,576.81 and 6,695.04 is: 10,044.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.78 : 27,576.81 = 6,695.04 : x
  2. Step 2: Convert to fraction form
    18,381.78/27,576.81 = 6,695.04/x
  3. Step 3: Cross multiply
    18,381.78x = 27,576.81 × 6,695.04
  4. Step 4: Simplify right side
    18,381.78x = 184,627,846.02
  5. Step 5: Solve for x
    x = 184,627,846.02/18,381.78
  6. Step 6: Final answer
    x = 10,044.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.